| maremoto | tidal wave |
| MareNostrum | MareNostrum |
| mareo | dizzy spell |
| marero | gangster |
| mares | sea |
| Mareógrafo | Tide gauge |
| Mareómetro | Tide gauge |
| marfil | ivory |
| marga | loam |
| Margaret | Margaret |
| Margaret Atwood | Margaret Atwood |
| Margaret Bourke-White | Margaret Bourke-White |
| Margaret Hendrie | Margaret Hendrie |
| Margaret Mahler | Margaret Mahler |
| Margaret Mazzantini | Margaret Mazzantini |
| Margaret Mead | Margaret Mead |
| Margaret Mitchell | Margaret Mitchell |
| Margaret Smith Court | Margaret Smith Court |
| Margaret Thatcher | Margaret Thatcher |
| Margaret Weis | Margaret Weis |
| Margarethe von Trotta | Margarethe von Trotta |
| margarina | margarine |
| margarina semigrasa | low-fat margarine |
| margarita | daisy |
| Margarita Beaufort | Lady Margaret Beaufort |
| margarita común | daisy |
| Margarita de Angulema | Marguerite de Navarre |
| Margarita de Anjou | Margaret of Anjou |
| Margarita de Antioquía | Margaret the Virgin |
| Margarita de Austria | Margaret of Habsburg |
| Margarita de Austria y Parma | Margaret of Parma |
| Margarita de Austria-Estiria | Margaret of Austria |
| Margarita de Connaught | Princess Margaret of Connaught |
| Margarita de Escocia | Saint Margaret of Scotland |
| Margarita de Provenza | Marguerite of Provence |
| Margarita de Valois | Marguerite de Valois |
| Margarita Eriksdotter | Margaret Leijonhufvud |
| Margarita Gómez-Acebo | Margarita Gomez-Acebo y Cejuela |
| Margarita I de Dinamarca | Margaret I of Denmark |
| Margarita II de Dinamarca | Margrethe II of Denmark |
| Margarita María Alacoque | Marguerite Marie Alacoque |
| Margarita maya | Daisy |
| Margarita Porete | Marguerite Porete |
| Margarita Teresa de España | Margaret Theresa of Spain |
| Margarita Teresa de Saboya | Margherita of Savoy |
| Margarita Tudor | Margaret Tudor |
| Margarita Zavala | Margarita Zavala |
| Margaritone de Brindisi | Margaritus of Brindisi |
| Marge Gamer | Marge Gamer |
| Marge on the Lam | Marge on the Lam |
| Marge Simpson | Marge Simpson |
| margen | leeway |
| margen de altura | clearance |
| margen de beneficio | markup |
| margen de error | margin of error |
| margen de ganancias | profit margin |
| margen de seguridad | margin of safety |
